KFuddles

Oh what a layer-of-a-layer-of-a-layer-of!
The sequence is the longest that's ever been heard of.
So long and so fancy they'd be in a fix
If they didn't have helpers.  It takes about six
To tag along hoisting The-KFuddle-dee-Duddle's
Wonderful sequence out of muddle-dee-puddles.
      --Adapted from Dr. Seuss, On Beyond Zebra

Usage

First define a sequence:

@sequence predict = KFuddle[
    Conv(xavier(5, 5, 1, 20)), # Initializes bias vector with zeros
    relu, # unary functions can be used in place
    pool,

    Conv(xavier(5, 5, 20, 50)),
    relu,
    pool,
    
    mat,
    
    Linear(xavier(500, 800)),
    relu,
    
    Linear(xavier(10, 500))
]

The variable predict is a function and weight container. To get the weights,

w = weights(predict)

Execute predict for a given feature matrix,

p = predict(w, x)

Additionally, the parameter layers are automatically labeled so that you can easily save and load snapshots,

save_snapshot("weights.jld", predict)
load_snapshot("weights.jld", predict)